B.A.A. 10K M15-19: Delmace Mayo Owns the Age Group

• Sole finisher and winner: Delmace Mayo, 19, of Jamaica Plain, completed the B.A.A. 10K in 28:05 — a 4:31/mile average on a brutally hot race day.
• Strong closing kick: Mayo posted the 4th-fastest split on the 8K-to-finish segment among the men, a notable surge through the final stretch in 93°F heat.

With just one finisher in the M15-19 age group, Delmace Mayo's result needs no comparison — he simply went out and ran. And what a run it was: 28:05 at 4:31 per mile through Boston's summer swelter, with temperatures hitting 93°F and a 15 mph wind doing little to cool things down.

The closing leg told the most compelling part of the story. From 8K to the finish line, Mayo found another gear, recording the 4th-fastest split on that segment among the men in the field. That kind of finish in oppressive heat isn't something that happens by accident — it reflects real fitness and competitive instinct, even without a rival in his age group to chase.

Mayo takes the M15-19 title by default, but the clock doesn't lie. A 28:05 10K at age 19, in these conditions, is a result worth noting on its own terms.